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package com.taobao.arthas.grpcweb.grpc.server.httpServer;
 
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.stream.ChunkedWriteHandler;

public class NettyHttpInitializer extends ChannelInitializer {

    private final String STATIC_LOCATION;

    public NettyHttpInitializer(String staticLocation) {
        this.STATIC_LOCATION = staticLocation;
    }


    @Override
    public void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();
        //将请求和应答消息编码或解码为HTTP消息
        pipeline.addLast(new HttpServerCodec());
        //将HTTP消息的多个部分组合成一条完整的HTTP消息
        pipeline.addLast(new HttpObjectAggregator(64 * 1024));
        pipeline.addLast(new ChunkedWriteHandler());
        pipeline.addLast(new NettyHttpStaticFileHandler(this.STATIC_LOCATION));
    }
}